Calculate the area of the circular pathway formed by concentric circles having the following radius R =20cm and r =6cm
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AREA OF CIRCULAR PATHWAY=π(R^2-r^2).
=22/7(20^2-6^2)
=22/7(20-6)(20+6)
=22/7×14×26
=22×2×26
=44×26
=1144cm^2.
=22/7(20^2-6^2)
=22/7(20-6)(20+6)
=22/7×14×26
=22×2×26
=44×26
=1144cm^2.
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